| Message ID | 1430200551-20708-2-git-send-email-cm-hiep@jinso.co.jp (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Hiep-san, On Tue, Apr 28, 2015 at 7:55 AM, Cao Minh Hiep <cm-hiep@jinso.co.jp> wrote: > To reduce indentation and complex of code, insteeds of returning zero, > the function rspi_dma_check_then_transfer should be returned > rspi_dma_transfer directly after checking error. Thanks for the update! Unfortunately it doesn't compile... > --- a/drivers/spi/spi-rspi.c > +++ b/drivers/spi/spi-rspi.c > @@ -665,15 +665,12 @@ static bool rspi_can_dma(struct spi_master *master, struct spi_device *spi, > static int rspi_dma_check_then_transfer(struct rspi_data *rspi, > struct spi_transfer *xfer) > { > - if (rspi->master->can_dma && __rspi_can_dma(rspi, xfer)) { > - /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ > - int ret = rspi_dma_transfer(rspi, &xfer->tx_sg, > - xfer->rx_buf ? &xfer->rx_sg : NULL); > - if (ret != -EAGAIN) > - return 0; > - } > + if (!rspi->master->can_dma || !__rspi_can_dma(rspi, xfer)) { Superfluous opening curly brace. Please compile and run test your patches. Thanks! > + return -EAGAIN; > > - return -EAGAIN; > + /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ > + return rspi_dma_transfer(rspi, &xfer->tx_sg, > + xfer->rx_buf ? &xfer->rx_sg : NULL); > } > > static int rspi_common_transfer(struct rspi_data *rspi,
Hello. On 4/28/2015 8:55 AM, Cao Minh Hiep wrote: > From: Hiep Cao Minh <cm-hiep@jinso.co.jp> > To reduce indentation and complex of code, insteeds of returning zero, Complexity? > the function rspi_dma_check_then_transfer should be returned Returning? Or perhaps just "return", without "be"? > rspi_dma_transfer directly after checking error. > Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp> > --- > drivers/spi/spi-rspi.c | 13 +++++-------- > 1 file changed, 5 insertions(+), 8 deletions(-) [...] WBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Geert-san, On 2015?04?28? 18:02, Geert Uytterhoeven wrote: > Hi Hiep-san, > > On Tue, Apr 28, 2015 at 7:55 AM, Cao Minh Hiep <cm-hiep@jinso.co.jp> wrote: >> To reduce indentation and complex of code, insteeds of returning zero, >> the function rspi_dma_check_then_transfer should be returned >> rspi_dma_transfer directly after checking error. > Thanks for the update! > > Unfortunately it doesn't compile... Sorry to bother you again. >> --- a/drivers/spi/spi-rspi.c >> +++ b/drivers/spi/spi-rspi.c >> @@ -665,15 +665,12 @@ static bool rspi_can_dma(struct spi_master *master, struct spi_device *spi, >> static int rspi_dma_check_then_transfer(struct rspi_data *rspi, >> struct spi_transfer *xfer) >> { >> - if (rspi->master->can_dma && __rspi_can_dma(rspi, xfer)) { >> - /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ >> - int ret = rspi_dma_transfer(rspi, &xfer->tx_sg, >> - xfer->rx_buf ? &xfer->rx_sg : NULL); >> - if (ret != -EAGAIN) >> - return 0; >> - } >> + if (!rspi->master->can_dma || !__rspi_can_dma(rspi, xfer)) { > Superfluous opening curly brace. > Please compile and run test your patches. > Thanks! Thanks, I'll fix it and send you at a moment. >> + return -EAGAIN; >> >> - return -EAGAIN; >> + /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ >> + return rspi_dma_transfer(rspi, &xfer->tx_sg, >> + xfer->rx_buf ? &xfer->rx_sg : NULL); >> } >> >> static int rspi_common_transfer(struct rspi_data *rspi, > > > Hiep. -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Sergei-san, >> To reduce indentation and complex of code, insteeds of returning zero, > > Complexity? > >> the function rspi_dma_check_then_transfer should be returned > > Returning? Or perhaps just "return", without "be"? > Thanks for pointing this out. I'll update it. Hiep. -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 186924a..a17564a 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -665,15 +665,12 @@ static bool rspi_can_dma(struct spi_master *master, struct spi_device *spi, static int rspi_dma_check_then_transfer(struct rspi_data *rspi, struct spi_transfer *xfer) { - if (rspi->master->can_dma && __rspi_can_dma(rspi, xfer)) { - /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ - int ret = rspi_dma_transfer(rspi, &xfer->tx_sg, - xfer->rx_buf ? &xfer->rx_sg : NULL); - if (ret != -EAGAIN) - return 0; - } + if (!rspi->master->can_dma || !__rspi_can_dma(rspi, xfer)) { + return -EAGAIN; - return -EAGAIN; + /* rx_buf can be NULL on RSPI on SH in TX-only Mode */ + return rspi_dma_transfer(rspi, &xfer->tx_sg, + xfer->rx_buf ? &xfer->rx_sg : NULL); } static int rspi_common_transfer(struct rspi_data *rspi,